284 



FEED. V. THEOBALD. 



hairs, curved at their apices. Anal plate darker than cauda ; finely spinose, with 

 some long pale hairs. Legs moderately long and thick ; a few short hairs on femora 

 and tibiae ; apex of tibiae and tarsi dusky. Length, T7-2 mm. 



Egypt: Ghezireh, 15.iv.09 (F. C. Willcocks). 



Food-plant.— Ornamental stocks. 



Described from a long series collected by Mr. Willcocks (preserved in spirit) and 

 from colour notes sent with them. It is a rather obscure species, which, however, 

 I cannot place with any described form. ' 



Three specimens mounted in balsam sent under the same number and food-plant 

 differ and I place them as a separate species, which is described as A. maihiolellae. 



9. Aphis mathiolellae, sp. nov. (fig. 9). 



Alate viviparous female. — Differs from the previous species in that the third 

 antennal segment has from 21-24 various-sized sensoria spread over the whole 

 length ; the fourth with 10-12 sensoria and the fifth with 3-4 sensoria. The 

 cornicles are also of different shape (vide fig. 9) and show spiral ornamentation. 



Fig. 9. Aphis mathiolellae, sp. n. : A, head and antenna of alate $ ; 

 a, antennal segments further enlarged; B, cauda; C, cornicle; D, apex 

 of wing ; |E, apex of proboscis ; F, head and antenna of apterous $ ; 



Gr, cornicle ;j|H, canda. 



Apterous viviparous female. — This differs in the more cylindrical form of the 

 cornicles, etc., from the previous species. 



Egypt: Ghezireh, 15.4.09 (F. C. Willcocks). 



Food-plant. — Ornamental Stocks. 



Found with Aphis [mathiolae. It may be a variety of it, but the marked 

 structural differences of antennae and cornicles seem to me to indicate clearly that 

 it is a separate species. 



Described from several alate females and a few apterae. 



